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Finding the Fourth Proportional to 298,999.38, 448,499.08 and 121,520.24

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Solution

The fourth proportional to 298,999.38, 448,499.08 and 121,520.24 is: 182,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,999.38 : 448,499.08 = 121,520.24 : x
  2. Step 2: Convert to fraction form
    298,999.38/448,499.08 = 121,520.24/x
  3. Step 3: Cross multiply
    298,999.38x = 448,499.08 × 121,520.24
  4. Step 4: Simplify right side
    298,999.38x = 54,501,715,841.38
  5. Step 5: Solve for x
    x = 54,501,715,841.38/298,999.38
  6. Step 6: Final answer
    x = 182,280.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.